Samsung DeviceTree update for v4.9, second round:
1. Enable HDMI on Arndale Octa board.
2. Update list of clocks for FIMC-IS block on Exynos4x12.
3. Remove skeleton.dtsi thus fixing DT compiler warning:
	"Node /memory has a reg or ranges property, but no unit name"
   This is a tree-wide effort by various people. Javier Martinez Canillas did
   it for Exynos and S5PV210.